Controlling device for shutters and the like.



FERDINAND RHRER, oE HEIDELBERG, GERMANY.

CONTROLLING DEVICE FOR SHUTTERS AND THE LIK.

Specification of Letters lliatentT Patented Oct. 3, 1916.

Application iled March 18, 1912. Serial No. 684,406.

To all 'whom t may concern Be it known that I, FERDINAND BHRER, asubject of the Emperor of Germany, residing at 13 Landhausstrasse,Heidelberg, in the German Empire, have invented cer-tain newl and usefulImprovements in Controlling Devices for Shutters and the like, of whichthe following is a specification.

The present invention has for its object a device without springs andwith a single operating cord for opening and closing easement windowsand transoms.

The device does not comprise any intermediate mechanism which wouldimpede its free operation and is characterized by the fact that theopening,.locking and unlocking of the transom are effected by a singleben? lever which is operated by the said corc.

An embodiment o-f the invention is illustrated by way of example in theaccompanying drawing in which:

Figure 1 is a perspective view of a portion of the transom open. Fig. 2shows the transom closed, in front elevation. Fig. 3 is a correspondingplan view. Fig. 4 is a plan view of the transom open.

1 designates an ordinary window frame to which the transom 2 is hingedin the usual manner, by means of hinges not shown in the drawing.

Upon the upper edge of the transom a plate or bracket 3 is fixed bymeans of screws and lugs 5 upon this plate, that is to say upon thesemi-circular projection 6 a bent lever 8 is pivoted by means of a pin 7the rear portion 9 of this lever being bent at right angles and providedwith an aperture 10.

Upon the bracket 3 6 there is Xed a stop 11 which in the two eXtremepositions of the bent lever is able to bear against the shoulders 12 and13. 14 is a pin Xed in the bracket upon the upper extremity of which thebent lever has frictional contact in order to insure perfect guidance.Upon the horizontal cross member of the window frame 1 a sort of hook ornose 16 is fixed and behind this the hooked extremity 17 of the bentlever is intended to engage when the transom is closed.

Upon the plate 15 that is to say upon its edge, guide roller 18 is Xed;the traction cord 19 attached in the opening 10 in the lever 8 passesbehind this roller. The opposite end of the -cord passes over a guideroller 21 and finally ends in a ring or handleV 22. y

Y 23 is a guide eyelet and 24a sort ofknot formed in the cord. This knotmight be replaced by a stop of any kind which ata given moment strikes,against the upper face of the eyelet 23.

The operation of the device is as follows:

When the transom occupying the openl position (Figs. 1 and 4) is to beclosed, a

sudden pull or jerk 'is given to the cord. 19 until the knot 24encounters the eyelet 23. Owing to the sudden traction the transom isbrought against the frame 1 and closed, while'the bent lever is engagedat its bent end 17 behind the nose 16 of the plate 15 `owing to themomentum acquired. The free movement of the bent lever is not in any wayimpeded as the cord is released as soon as the pull has been given. Theopposite end of the cord is therefore slackened or released.

When the device is fitted, the knot 24 is arranged in such a manner inthe cord that when the transom is closed, it still presents sufficientplay to permit the bent lever to engage in the nose itself when the cordis still retained in the hand. The sudden traction is opposed by theeyelet 23 so that the bent lever is released suddenly.

When the transom is closed, the bent lever occupies the position shownin Fig. 3. It is only necessary to pull the cord 19 suddenly in order torelease the lever. transom then falls by its own weight into the closedposition.

What I claim and desire to secure by Letters Patent of the United Statesis 1. A controlling device for windows comprising in combination with amovable and a stationary window frame, a double-armed horizontal bentlever, pivotally carried by the movable frame and having its one endbent to form a bolting hook and its other end bent to form a part,controlling the bent lever by interfering with the stationary frame whenclosing and opening the window, an operating cord xed to the saidcontrolling part and guided at the stationary window frame, a stopprovided on the said operating cord, means attached to the stationaryframe and engaging with the said stop for limiting its motion when thewindow is opened or closed and a hook fixed to the stationary frame andadapted The to come into engagement With the said. bolting hook.

2. A controlling device for Windows com-V prising in combination With amovable and a stationary Window frame, a double-armed horizontal bentlever and a bracket attached to the movable frame, the lever pivoting onthe bracket and having its one end bent to form a bolting hook and itsother end bent to form a part Controlling the bent lever by pushingagainst the sta.- tionary frame When opening and Closing the Window, anoperating oord fastened to the said controlling part, rollersfor'guicling the said cord on the stationary frame, 15 the oord having aknot to limit its motion When closing land opening the Window, a hookcarried by the stationary frame and adapted to engage With the saidbolting hook, and a stop carried by the bracket and 20 limiting therotary motion of the bent lever. Y

In testimony whereof I affix my signature in presence of tivo.Witnesses.

FERDINAND BOHRER.

Witnesses: Y A. O. TITTMANN, ADoLF KAISER.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of @atenta Washington, D. C.

